Oral HPV infection and MHC class II deficiency (A study of two cases with atypical outcome).

Background: Major histocompatibility complex class II deficiency, also referred to as bare lymphocyte syndrome is a rare primary Immunodeficiency disorder characterized by a profondly deficient human leukocyte antigen class II expression and a lack of cellular and humoral immune responses to foreign antigens. Clinical manifestations include extreme susceptibility to viral, bacterial, and fungal infections. The infections begin in the first year of life and involve usually the respiratory system and the gastrointestinal tract.

Spectrum of autoantibodies other than anti-desmoglein in pemphigus patients.

Background: Pemphigus is a life-threatening autoimmune blistering disease mediated by autoantibodies against adhesion molecule of the skin. Its concurrence with systemic and organ-specific autoimmune disease was described in case reports.

Objectives: To evaluate the presence of a broad spectrum of organ-specific and non-organ-specific autoantibodies other than anti-desmoglein antibodies in pemphigus patients.

[Systemic corticosteroids and their place in the management of hemorrhagic erysipelas].

Background: Haemorrhagic erysipelas is a recently described clinical condition.

Aim: Our aim is to study the clinical and evolutive particularities of haemorrhagic erysipelas treated with adjuvant corticotherapy.

Methods: It's a retrospective study of 6 cases of erysipelas of the lower limbs with serious local signs (purpura, bullae, petechia).

[Contribution of immunohistochemical detection of human herpesvirus-8 latent nuclear antigen-1 in the diagnosis of Kaposi disease].

Aims: To study the immunohistochemical expression of HHV8 in Kaposi's lesions and in other vascular lesions and to determine the utility of this technique in differentiating between Kaposi's disease (KD) and other vascular lesions.

Methods: Fixed, paraffin-embedded tissue sections from 25 cases of KD, 9 cases of hemangioma, 2 cases of angiolymphoid hyperplasia with eosinophilia and 9 cases of angiosarcoma were examined immunohistochemically using the monoclonal antibody monoclonal LNA 53 (ABI). Strong, nuclear and granular staining in at least a cell was considered as a positive result.